12400620500377 has 4 divisors (see below), whose sum is σ = 12405351758436. Its totient is φ = 12395889242320.

The previous prime is 12400620500341. The next prime is 12400620500381. The reversal of 12400620500377 is 77300502600421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10170926477721 + 2229694022656 = 3189189^2 + 1493216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12400620500377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12400620500677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365625098 + ... + 2365630339.

It is an arithmetic number, because the mean of its divisors is an integer number (3101337939609).

Almost surely, 2^{12400620500377} is an apocalyptic number.

It is an amenable number.

12400620500377 is a deficient number, since it is larger than the sum of its proper divisors (4731258059).

12400620500377 is an equidigital number, since it uses as much as digits as its factorization.

12400620500377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731258058.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 12400620500377 in words is "twelve trillion, four hundred billion, six hundred twenty million, five hundred thousand, three hundred seventy-seven".